Figure 4From: Interstitial lung diseases in childrenAlveolar structure disorder-associated ILD. Depending on the causes, the alveolar structure components can be involved differently and serve as primary targets of the underlying pathological processes. Based on history, clinical presentation, BAL and lung tissue information, the disorders can be gathered in groups according to the predominant alveolar targets: epithelium, vascular or interstitial components.Back to article page